Re: Lav Placement...
 

I guess I spent too much time in the repair shop. The first thing that pops into my mind is Metal Oxide Semiconductor, as in MOSFET.

Except at the local diner, where MOS is a burger with mushrooms, onions, and swiss.

Seriously, I cast a vote for Vox Pop (vox populi = voice of the people, as I believe someone stated above). I think that's best, as it's unambiguous. Vox Pop does not refer to anything else in filmmaking, in electronics, or on a menu, as far as I know.